| Index | Timber Lake | South Dakota | National |
| Average Test Scores | 63% | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Timber Lake | South Dakota | National |
| Completed 8th grade | 87.4% | 89.1% | 84.3% |
| Completed high school | 80.8% | 86.8% | 83.0% |
| Completed some college | 43.7% | 60.4% | 59.4% |
| Completed associate degree | 25.7% | 38.5% | 38.5% |
| Completed bachelors | 16.5% | 27.5% | 30.3% |
| Completed masters | 4.8% | 8.1% | 11.5% |
| Completed professional degree | 0.9% | 2.5% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Timber Lake. Using the proficiency score averages, the average test scores for Timber Lake, SD schools is 63%. The average student to teacher ratio is n/a. In Timber Lake, SD, an average of 87.4% of students have completed 8th grade and an average of 80.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Timber Lake, SD | 669 | 63% | 31.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Stratford, IA | 669 | 65% | 35.4% |
| Mountain View, OK | 669 | 51% | 6.3% |
| Adair, OK | 669 | 45% | 6.6% |
| Trenton, TX | 669 | 51% | 6.6% |
| Bedford Park, IL | 669 | 20% | 59.4% |
| Timber Lake, SD | 669 | 63% | 31.3% |
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